Step-By-Step.............................

Add Background Image

1. Open your layers palette and unlock the Background
layer and turn it into a regular layer by double kicking on it.Double click on the layer name in the Layers Palette.
2. Set the Transparency Setting to Grid so you can
see the results of deleting the white pixels in step 4.
Photoshop > Preferences > Transparency & Gamut:
Set the Grid Size to Small/Medium/Large

3. Select the Magic Wand Tool and make sure the
Tolerance is set to 32.
.
4. Click on the white pixels with the Magic Wand Tool
to select them. Delete them.Shift Click to select any that didn't get selected if youneed to..
5. Go on the Internet and search for a texture/pattern that is
2000 pixels x 2000 pixels or larger.

Step-By-Step.............................

Add More Objects

1. Google Image Search: Search for an image of an object that goes
with the seashell theme of 03Working.
.
2. Make sure it has enough pixelsRemember, your file is about 2000 pixels wide so if you want a dolphinthat is about the same size as the sand dollar, find one that is nosmaller than 400 pixels wide. You can always scale it down if it'sbigger but if you scale it up, you will lose image quality.